Abstract
Objective: To analyze the characteristics of multi-detector spiral computed tomography(MDCT) enhancement scan in gastric cancer T staging. Methods: Thirty-seven gastric carcinoma patients were scanned by MDCT. After plain scans, patients were performed enhancement scans by arterial phase and portal venous phase. We reconstructed the stomach to three-dimension analysis, and combining the source images, we evaluate the scope and extent of the gastric carcinoma. Compared the CT scans with operations and pathological sections, to analyze the T staging characteristics. Results: The enhancement scopes in portal venous phase scan was much bigger than arterial phase scan in all patients. The slightly enhancement appeared both in portal venous phase and arterial phase scans and had the same enhancement scopes in T1 stage patients. In T2 stage, most patients enhanced in the way of slightly arterial phase and obviously portal venous phase enhancement, and enhancement scopes in portal venous phase scans was much bigger. In T3 stage, more than half of patients’ enhancement way was same as T2 stage, but enhancement scopes in two phases scans was the same. In T4 stage, most patients were obviously enhanced in all phases. Conclusion: Combining the reconstruction technique, MDCT double-phrase scans can evaluate the scope and extent of the adenocarcinoma invasion, and be of some use in T staging of gastric carcinoma.
Key words
Stomach neoplasms /
Neoplasm staging /
Tomography /
X-ray computed
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LI Zhen;HU Dao-yu;XIAO Ming;SONG Jin-mei.
Characteristics of MDCT enhancement scan in T staging of gastric cancer[J]. Journal of China Clinic Medical Imaging. 2008, 19(3): 174-177
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